linux-kernel - Re: [PATCHv2 3/3] ARM: dts: meson8b: ec100: Fix the pwm regulator supply properties

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Message-ID: <CAFBinCAkAz7Vhd6Rkk3RYC7x7i-yZiNykObTxv-R2wYCTxHSRQ@mail.gmail.com>
Date:   Thu, 8 Jul 2021 14:58:39 +0200
From:   Martin Blumenstingl <martin.blumenstingl@...glemail.com>
To:     Anand Moon <linux.amoon@...il.com>
Cc:     linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Rob Herring <robh+dt@...nel.org>,
        Neil Armstrong <narmstrong@...libre.com>,
        Kevin Hilman <khilman@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        devicetree@...r.kernel.org
Subject: Re: [PATCHv2 3/3] ARM: dts: meson8b: ec100: Fix the pwm regulator
 supply properties

On Mon, Jul 5, 2021 at 1:25 PM Anand Moon <linux.amoon@...il.com> wrote:
>
> After enabling CONFIG_REGULATOR_DEBUG=y we observer below debug logs.
> Changes help link VCCK and VDDEE pwm regulator to 5V regulator supply
> instead of dummy regulator.
>
> [    7.117140] pwm-regulator regulator-vcck: Looking up pwm-supply from device tree
> [    7.117153] pwm-regulator regulator-vcck: Looking up pwm-supply property in node /regulator-vcck failed
> [    7.117184] VCCK: supplied by regulator-dummy
> [    7.117194] regulator-dummy: could not add device link regulator.8: -ENOENT
> [    7.117266] VCCK: 860 <--> 1140 mV at 986 mV, enabled
> [    7.118498] VDDEE: will resolve supply early: pwm
> [    7.118515] pwm-regulator regulator-vddee: Looking up pwm-supply from device tree
> [    7.118526] pwm-regulator regulator-vddee: Looking up pwm-supply property in node /regulator-vddee failed
> [    7.118553] VDDEE: supplied by regulator-dummy
> [    7.118563] regulator-dummy: could not add device link regulator.9: -ENOENT
>
> Fixes: 087a1d8b4e4c ("ARM: dts: meson8b: ec100: add the VDDEE regulator")
> Fixes: 3e7db1c1b7a3 ("ARM: dts: meson8b: ec100: improve the description of the regulators")
>
> Cc: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
> Signed-off-by: Anand Moon <linux.amoon@...il.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>